classified as social novels dealing with the economic problems of rural labour,
In Dubious Battle (1936), which deals with the strikes of the migratory fruit pickers on California plantations.
Of Mice and Men (1937), the story of the imbecile giant Lennie
The Grapes of Wrath, the story of Oklahoma tenant farmers who, unable to earn a living from the land, moved to California where they became migratory workers.